Every portable sanitation company is going to face ups and downs over the years, whether the challenges are brought on by a rollercoaster economy, seasonal spikes in demand for service or workforce issues. The Holm family, owners of On Site Sanitation in St. Paul, Minn., has spent 25 years meeting those challenges with creative solutions and measured business gambles to chart a course of service diversification, geographic expansion and steady growth.In 1989, Karen and Dave Holm started On Site with 25 units and one vacuum truck. Today they’ve got over 5,000 units, 45 vacuum trucks, 65 employees and four locations.Karen
